Can anyone tell me whether you can get normals form two spangle parents? So far from this clutch of three I have one DF spangle, one SF spangle and one which seems to dark to be a spangle so I'm thinking normal(the youngest so it's not as feathered yet)?

Yes, you can. I am not sure of amounts but I think 25% ?

Only if they are 2 Single Factor Spangles and Kaz is right on the %

According to the genes I inputed into that caculator I found I should get 12.5% blue normals and 12.5 % violet normals of each sex. So it agrees with that 25%